What is Rayleigh scattering, and what are its most noticeable
effects for us on Earth?

What is the greenhouse effect, and what is its importance to
the surface temperature of the Earth?

What is convection, and how does it affect the Earth's
atmosphere?

Explain how the Moon produces tides.

If the Moon had oceans like the Earth, what would the tidal
effect be? How many high and low tides would there be each Moon-day?
How would the height of tides on the Moon be related to those on the
Earth?

If the Earth had no Moon, do you think we would know anything
about tidal forces?

Is the greenhouse effect helpful or harmful for the Earth?
Give examples. What would be the consequences of an enhanced
greenhouse effect?